Unsupported

Once a new major version is released, the previous stable release remains supported for six more months through patches and security fixes.

Highlights

`Period` is PHP's Time Range class. It is based on [Resolving Feature Envy in the Domain](http://verraes.net/2014/08/resolving-feature-envy-in-the-domain/) by Mathias Verraes and extends the concept to cover all basic operations regarding time ranges.